LP3907 Datasheet, PDF (6/42 Pages) National Semiconductor (TI) – Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C Compatible Interface

Absolute Maximum Ratings (Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V_IN, SDA, SCL
GND to GND SLUG
Power Dissipation (P_{D_MAX})
(T_A=85°C, T_MAX=125°C, )(Note 5)
Junction Temperature (T_J-MAX)
Storage Temperature Range
Maximum Lead Temperature (Soldering)
−0.3V to +6V
±0.3V
1.43W
150°C
−65°C to +150°C
260°C
ESD Ratings
Human Body Model (Note 4)
2kV
Operating Ratings: Bucks
(Notes 1, 2, 7, 18)
V_IN
V_EN
Junction Temperature (T_J) Range
2.8V to 5.5V
0 to (V_IN + 0.3V)
−40°C to +125°
C
Ambient Temperature (T_A) Range (Note 6) −40°C to +85°C
Thermal Properties (Notes 3, 5, 6)
Junction-to-Ambient Thermal
Resistance (θ_JA) SQA024AE
28°C/W
General Electrical Characteristics (Notes 1, 2, 7, 13, 17)
Unless otherwise noted, V_IN = 3.6V. Typical values and limits appearing in normal type apply for T_J = 25°C. Limits appearing in
boldface type apply over the entire junction temperature range for operation, −40°C to +125°C.
Symbol
Parameter
Conditions
Min
Typ
Max Units
I_Q
V_POR
T_SD
T_SDH
UVLO
VINLDO12 Shutdown Current
Power-On Reset Threshold
Thermal Shutdown Threshold
Themal Shutdown Hysteresis
Under Voltage Lock Out
V_IN = 3.6V
V_DD Falling Edge(Note 17)
Rising
Falling
3
µA
1.9
V
160
°C
20
°C
2.9
V
2.7
I²C Compatible Interface Electrical Specifications (Note 13)
Unless otherwise noted, V_IN = 3.6V. Typical values and limits appearing in normal type apply for T_J = 25°C. Limits appearing in
boldface type apply over the entire junction temperature range for operation, −40°C to +125°C
Symbol
Parameter
Conditions
Min
Typ
Max Units
F_CLK
t_BF
t_HOLD
t_CLKLP
t_CLKHP
t_SU
t_DATAHLD
t_DATASU
T_SU
T_TRANS
Clock Frequency
Bus-Free Time Between Start and Stop (Note 13)
Hold Time Repeated Start Condition (Note 13)
CLK Low Period
(Note 13)
CLK High Period
(Note 13)
Set Up Time Repeated Start Condition (Note 13)
Data Hold time
(Note 13)
Data Set Up Time
(Note 13)
Set Up Time for Start Condition
(Note 13)
Maximum Pulse Width of Spikes that (Note 13)
Must be Suppressed by the Input Filter of
Both DATA & CLK Signals.
400
kHz
1.3
µs
0.6
µs
1.3
µs
0.6
µs
0.6
µs
0
µs
100
ns
0.6
µs
50
ns
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